123462780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{79}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 406748160

約数和(自身を除く): 283285380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 79, 84, 105, 122, 140, 158, 183, 210, 237, 244, 305, 316, 366, 395, 420, 427, 474, 553, 610, 732, 790, 854, 915, 948, 1106, 1185, 1220, 1281, 1580, 1659, 1708, 1830, 2135, 2212, 2370, 2562, 2765, 3318, 3660, 3721, 4270, 4740, 4819, 5124, 5530, 6405, 6636, 7442, 8295, 8540, 9638, 11060, 11163, 12810, 14457, 14884, 16590, 18605, 19276, 22326, 24095, 25620, 26047, 28914, 33180, 33733, 37210, 44652, 48190, 52094, 55815, 57828, 67466, 72285, 74420, 78141, 96380, 101199, 104188, 111630, 130235, 134932, 144570, 156282, 168665, 202398, 223260, 260470, 289140, 293959, 312564, 337330, 390705, 404796, 505995, 520940, 587918, 674660, 781410, 881877, 1011990, 1175836, 1469795, 1562820, 1763754, 2023980, 2057713, 2939590, 3527508, 4115426, 4409385, 5879180, 6173139, 8230852, 8818770, 10288565, 12346278, 17637540, 20577130, 24692556, 30865695, 41154260, 61731390, 123462780]

約数ペア:

[(1, 123462780), (2, 61731390), (3, 41154260), (4, 30865695), (5, 24692556), (6, 20577130), (7, 17637540), (10, 12346278), (12, 10288565), (14, 8818770), (15, 8230852), (20, 6173139), (21, 5879180), (28, 4409385), (30, 4115426), (35, 3527508), (42, 2939590), (60, 2057713), (61, 2023980), (70, 1763754), (79, 1562820), (84, 1469795), (105, 1175836), (122, 1011990), (140, 881877), (158, 781410), (183, 674660), (210, 587918), (237, 520940), (244, 505995), (305, 404796), (316, 390705), (366, 337330), (395, 312564), (420, 293959), (427, 289140), (474, 260470), (553, 223260), (610, 202398), (732, 168665), (790, 156282), (854, 144570), (915, 134932), (948, 130235), (1106, 111630), (1185, 104188), (1220, 101199), (1281, 96380), (1580, 78141), (1659, 74420), (1708, 72285), (1830, 67466), (2135, 57828), (2212, 55815), (2370, 52094), (2562, 48190), (2765, 44652), (3318, 37210), (3660, 33733), (3721, 33180), (4270, 28914), (4740, 26047), (4819, 25620), (5124, 24095), (5530, 22326), (6405, 19276), (6636, 18605), (7442, 16590), (8295, 14884), (8540, 14457), (9638, 12810), (11060, 11163)]